Gertrude Rhinelander Waldo House

The Gertrude Rhinelander Waldo House is a French Renaissance revival mansion at 867 Madison Avenue on the corner of East 72nd Street on the Upper East Side of Manhattan in New York City. Completed in 1898, it was designed by the architecture firm of Kimball & Thompson and has been more specifically credited to Alexander Mackintosh, a British-born architect who worked for Kimball & Thompson from 1893 until 1898.Gertrude Rhinelander Waldo, the New York heiress who commissioned the mansion, never actually moved in.